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ATOM U

SKU:K117

Description

ATOM U is a compact low-power consumption speech recognition IoT development kit. It adopts an ESP32 chipset, equipped with 2 low-power Xtensa 32-bit LX6 microprocessors with the main frequency of up to 240MHz. Built-in USB-A interface, IR emitter, programmable RGB LED. Plug-and-play, easy to upload and download programs. Integrated Wi-Fi and digital microphone SPM1423(PDM) for the clear sound record. suitable for HMI, Speech-to-Text (STT).

  • LOW-CODE DEVELOPMENT:

    • ATOM U supports UIFlow graphical programming platform, scripting-free, cloud push; Fully compatible with Arduino, MicroPython, ESP32-IDF, and other mainstream development platforms, to quickly build various applications.
  • HIGH INTEGRATION:

    • ATOM U contains a USB-A port for programming/power supply, IR emitter, programmable RGB LED x1, button x1; Finely tuned RF circuit, providing stable and reliable wireless communication.
  • STRONG EXPANDABILITY:

    • ATOM U is easy access to M5Stack's hardware and software system

Features

  • ESP32-PICO-D4 (2.4GHz Wi-Fi dual mode)
  • Integrated programmable RGB LED and button
  • Compact design
  • Built-in IR emitter
  • Expandable pinout and GROVE port
  • Development platform: - UIFlow - MicroPython - Arduino

Includes

  • 1x ATOM U

Applications

  • IoT controller
  • Voice recording, Speech-to-Text services

Specification

Resources Parameters
ESP32-PICO-D4 240MHz dual core, 600 DMIPS, 520KB SRAM, 2.4G Wi-Fi
Microphone SPM1423
Microphone sensitivity 94dB SPL@1KHz Typical value: -22dBFS
Microphone signal-to-noise ratio 94dB SPL@1KHz, A-weighted Typical value: 61.4dB
Standby working current 40.4mA
Support input sound frequency 100Hz ~ 10KHz
Support PDM clock frequency 1.0 ~ 3.25MHz
Product Size 52 * 20 * 10mm
Package Size 114 * 64 * 22mm
Product Weight 8.4g
Package Weight 10.6g

Schematic

schematics

PinMap

SPM1423 - PDM

image

IR & SK6812 & BUTTON

image

HY2.0-4P

image

Examples

Arduino

Video

  • ATOM U STT Tutorial

  • STT Example